The untitled Kohan/Mutchick comedy, from Warner Bros. TV, centers on two men -- one straight, one gay (Tudyk) -- who are lifelong best friends and business partners.

Tudyk, who recently starred in NBC's untitled Luke Reiter pilot and the features "3:10 to Yuma" and "Knocked Up," is repped by Endeavor and manager Geordie Frey.

"Under," from WBTV, stars Mac as a larger-than-life man who, after a divorce, has to live with and work for his twentysomething son, Bernard (Bert Belasco).

Parker is set to play Jada, a single, hard-working, blue-collar employee of Bernard's who develops an interestingly complicated relationship with him.

Arias will play Rosa, a Guadalajara native who clashes with Mac when he accuses her -- accurately -- of being an illegal immigrant.

APA-repped Parker is best known for her roles on NBC's "The Pretender" and ABC's "Less Than Perfect."

Silvana ("Passions") began her career in the Latin market, starring on several Telemundo shows before making the move to Los Angeles. She is repped by Sovereign Talent Agency and Gilbertson Entertainment.

"Hurt," from 20th TV, is a semiscripted comedy set at a medical practice run by a fiftysomething pediatrician and his brainy internist son (Dean) and an OBGYN.

Lengies will play Lily, the new receptionist at the clinic who is sweet, naive and disarmingly sincere.

MacArthur ("The Game Plan") has signed on as Reid, a handsome, slightly dim-bulb nurse who runs a secret gambling operation out of his nursing station.

Dean, star of Fox's comedy "Free Ride," recently wrapped the indie film "Young People F***ing." He is repped by Gersh and manager Jerry Silverhardt.

Lengies ("American Dreams") is repped by Gersh and the Burstein Co.

"Dollhouse," from 20th TV, revolves around a group of young men and women, aka Dolls, who are imprinted with different personalities.

Lennix ("24") is set to play Boyd, an ex-cop who serves as Echo's (Eliza Dushku) bodyguard.